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Equity Additional (Details) - USD ($) $ / shares in Units, $ in Thousands						1 Months Ended	3 Months Ended		6 Months Ended
	Aug. 04, 2021	May 05, 2021	Feb. 25, 2021	May 07, 2020	Mar. 05, 2020	Sep. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Class of Stock [Line Items]
Dividends, Common Stock							$ 29,184	$ 26,763	$ 58,316	$ 53,877
Issuance of shares for acquisition of business									$ 0	$ 113,841
Common Stock
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.035	$ 0.035	$ 0.035	$ 0.035				$ 0.070	$ 0.070
Common Class B
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared		$ 0.035	$ 0.035	$ 0	$ 0				$ 0.070	$ 0
Number of shares issued in transaction (in shares)						54,744,525
Consideration received on transaction						$ 450,000
Dividend Declared [Member] | Common Stock
Class of Stock [Line Items]
Dividends, Common Stock		$ 27,268	$ 27,220	$ 26,767	$ 27,117				$ 54,488	$ 53,884
Dividend Declared [Member] | Common Class B
Class of Stock [Line Items]
Dividends, Common Stock		$ 1,916		$ 0	$ 0				$ 3,832	$ 0
Subsequent Event | Common Stock
Class of Stock [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.035

X

- Definition

Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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